{"id":5020,"date":"2026-05-15T04:18:11","date_gmt":"2026-05-15T04:18:11","guid":{"rendered":"https:\/\/weishantech.com\/?p=5020"},"modified":"2026-05-15T08:03:12","modified_gmt":"2026-05-15T08:03:12","slug":"pruvodce-dychacimi-okruhy-mapleson","status":"publish","type":"post","link":"https:\/\/weishantech.com\/cs\/mapleson-breathing-circuits-guide\/","title":{"rendered":"Vysv\u011btlivky Maplesonov\u00fdch d\u00fdchac\u00edch okruh\u016f: Typy A\u2013F, principy \u010dinnosti a pr\u016fvodce klinick\u00fdm v\u00fdb\u011brem"},"content":{"rendered":"<h1 class=\"wp-block-heading\">Vysv\u011btlivky Maplesonov\u00fdch d\u00fdchac\u00edch okruh\u016f: Typy A\u2013F, principy \u010dinnosti a pr\u016fvodce klinick\u00fdm v\u00fdb\u011brem<\/h1>\n\n\n\n<p>Maplesonovy d\u00fdchac\u00ed okruhy jsou polouzav\u0159en\u00e9 anestetick\u00e9 pod\u00e1vac\u00ed syst\u00e9my, kter\u00e9 jsou klasifikov\u00e1ny do \u0161esti typ\u016f (A, B, C, D, E a F) na z\u00e1klad\u011b uspo\u0159\u00e1d\u00e1n\u00ed p\u0159\u00edvodu \u010derstv\u00e9ho plynu, APL ventilu, rezervo\u00e1rov\u00e9ho vaku a d\u00fdchac\u00edch hadic. Jsou \u0161iroce pou\u017e\u00edv\u00e1ny v celkov\u00e9 anestezii k pod\u00e1v\u00e1n\u00ed kysl\u00edku a t\u011bkav\u00fdch l\u00e1tek a z\u00e1rove\u0148 zabra\u0148uj\u00ed zp\u011btn\u00e9mu vdechov\u00e1n\u00ed CO\u2082. Tento pr\u016fvodce od WeishanTech popisuje, jak ka\u017ed\u00fd okruh funguje, kdy ho pou\u017e\u00edt a jak vybrat spr\u00e1vn\u00fd typ pro r\u016fzn\u00e9 klinick\u00e9 sc\u00e9n\u00e1\u0159e.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Co je to Mapleson\u016fv d\u00fdchac\u00ed okruh?<\/strong><strong><\/strong><\/h2>\n\n\n\n<p>D\u00fdchac\u00ed okruh Mapleson je polouzav\u0159en\u00fd inhala\u010dn\u00ed anesteziologick\u00fd syst\u00e9m, kter\u00fd se spol\u00e9h\u00e1 na nep\u0159etr\u017eit\u00fd tok \u010derstv\u00e9ho plynu (FGF) \u2013 nikoli na chemickou absorpci CO\u2082 \u2013 k odstran\u011bn\u00ed vydechovan\u00e9ho oxidu uhli\u010dit\u00e9ho a zabr\u00e1n\u011bn\u00ed op\u011btovn\u00e9mu vdechov\u00e1n\u00ed pacienta. Syst\u00e9m byl poprv\u00e9 klasifikov\u00e1n Williamem Wellesley Maplesonem v roce 1954 a z\u016fst\u00e1v\u00e1 jedn\u00edm z nej\u010dast\u011bji zmi\u0148ovan\u00fdch r\u00e1mc\u016f ve vzd\u011bl\u00e1v\u00e1n\u00ed v anesteziologii po cel\u00e9m sv\u011bt\u011b.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Jak\u00fdch je p\u011bt z\u00e1kladn\u00edch slo\u017eek?<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>Ka\u017ed\u00fd Mapleson\u016fv okruh se skl\u00e1d\u00e1 z p\u011bti z\u00e1kladn\u00edch sou\u010d\u00e1st\u00ed:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>P\u0159\u00edvod \u010derstv\u00e9ho plynu<\/strong>\u00a0\u2014 m\u00edsto, kudy do okruhu vstupuje kysl\u00edk a inhala\u010dn\u00ed anestetika z anesteziologick\u00e9ho p\u0159\u00edstroje.<\/li>\n\n\n\n<li><strong>Vlnit\u00e1 d\u00fdchac\u00ed hadice<\/strong>\u00a0\u2013 ohebn\u00e1 hadi\u010dka, kter\u00e1 spojuje konec p\u0159\u00edstroje s koncem pacienta a slou\u017e\u00ed jako z\u00e1sobn\u00edk plynu.<\/li>\n\n\n\n<li><strong>Ventil s nastaviteln\u00fdm omezen\u00edm tlaku (APL)<\/strong>\u00a0\u2014 naz\u00fdvan\u00fd tak\u00e9 pojistn\u00fd ventil, odv\u00e1d\u00ed p\u0159ebyte\u010dn\u00fd plyn, aby se zabr\u00e1nilo hromad\u011bn\u00ed tlaku.<\/li>\n\n\n\n<li><strong>Vak pro rezervo\u00e1r<\/strong>\u00a0\u2014 pru\u017en\u00fd vak, kter\u00fd ukl\u00e1d\u00e1 plyn b\u011bhem v\u00fddechov\u00e9 f\u00e1ze a poskytuje vizu\u00e1ln\u00ed indik\u00e1tor ventilace.<\/li>\n\n\n\n<li><strong>Port pro p\u0159ipojen\u00ed pacienta<\/strong>\u00a0\u2014 rozhran\u00ed (maska, endotrache\u00e1ln\u00ed kanyla nebo LMA) propojuj\u00edc\u00ed okruh s pacientov\u00fdmi d\u00fdchac\u00edmi cestami.<\/li>\n<\/ol>\n\n\n\n<p>Pozice t\u011bchto p\u011bti komponent v\u016f\u010di sob\u011b navz\u00e1jem definuje ka\u017ed\u00fd Mapleson\u016fv typ (A a\u017e F) a ur\u010duje jeho \u00fa\u010dinnost pro spont\u00e1nn\u00ed nebo \u0159\u00edzen\u00e9 d\u00fdch\u00e1n\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Jak se Maplesonovy okruhy li\u0161\u00ed od kruhov\u00fdch d\u00fdchac\u00edch syst\u00e9m\u016f?<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>Maplesonovy okruhy odstra\u0148uj\u00ed CO\u2082 jeho propl\u00e1chnut\u00edm vysok\u00fdm pr\u016ftokem \u010derstv\u00e9ho plynu. Kruhov\u00e9 syst\u00e9my pou\u017e\u00edvaj\u00ed chemick\u00fd absorb\u00e9r CO\u2082 (soda v\u00e1penn\u00e1) k pohlcov\u00e1n\u00ed vydechovan\u00e9ho oxidu uhli\u010dit\u00e9ho, co\u017e umo\u017e\u0148uje mnohem ni\u017e\u0161\u00ed pr\u016ftoky \u010derstv\u00e9ho plynu.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Funkce<\/strong><\/td><td><strong>Maplesonovy okruhy<\/strong><\/td><td><strong>Kruhov\u00e9 syst\u00e9my<\/strong><\/td><\/tr><tr><td><strong>Metoda odstra\u0148ov\u00e1n\u00ed CO\u2082<\/strong><\/td><td>Proplachov\u00e1n\u00ed \u010derstv\u00fdm plynem<\/td><td>Chemick\u00e1 absorpce (soda v\u00e1penn\u00e1)<\/td><\/tr><tr><td><strong>Po\u017eadavek FGF<\/strong><\/td><td>Vysok\u00e1 (1\u20133\u00d7 za minutu)<\/td><td>N\u00edzk\u00fd (0,5\u20131 l\/min mo\u017en\u00e9)<\/td><\/tr><tr><td><strong>Slo\u017eitost syst\u00e9mu<\/strong><\/td><td>Jednoduch\u00e9, p\u00e1r komponent<\/td><td>Slo\u017eit\u011bj\u0161\u00ed, v\u00edce komponent<\/td><\/tr><tr><td><strong>Hmotnost a p\u0159enosnost<\/strong><\/td><td>Lehk\u00fd, p\u0159enosn\u00fd<\/td><td>T\u011b\u017e\u0161\u00ed, m\u00e9n\u011b p\u0159enosn\u00fd<\/td><\/tr><tr><td><strong>\u00daspora paliva<\/strong><\/td><td>N\u00edzk\u00fd (vy\u0161\u0161\u00ed odpad)<\/td><td>Vysok\u00e1 (\u00faspora plynu)<\/td><\/tr><tr><td><strong>Nejvhodn\u011bj\u0161\u00ed pro<\/strong><\/td><td>Kr\u00e1tk\u00e9 p\u0159\u00edpady, pediatrie, poln\u00ed pou\u017eit\u00ed<\/td><td>Dlouhodob\u00e9 procedury<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Kdo vynalezl Maplesonovu klasifikaci?<\/strong><strong><\/strong><\/h2>\n\n\n\n<p>William Wellesley Mapleson (1926\u20132018), fyzik a fyziolog z University of Wales, publikoval p\u016fvodn\u00ed klasifikaci v roce 1954 v British Journal of Anaesthesia. Matematicky analyzoval vzorce recyklace dechu nap\u0159\u00ed\u010d p\u011bti polouzav\u0159en\u00fdmi anestetick\u00fdmi syst\u00e9my a ozna\u010dil je typy A a\u017e E.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Kdy byl p\u0159id\u00e1n Mapleson F?<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>Mapleson F byl zaveden v roce 1975 Willisem, Penderem a Maplesonem. Zahrnoval Jackson-Reesovu modifikaci Ayreova T-kusov\u00e9ho ventilu \u2014 p\u0159id\u00e1n\u00edm mal\u00e9ho rezervo\u00e1rov\u00e9ho vaku s otev\u0159en\u00fdm koncem na konec obvodu typu E. Tato modifikace vy\u0159e\u0161ila riziko barotraumatismu spojen\u00e9 s p\u016fvodn\u00edm bezventilov\u00fdm designem T-kusov\u00e9ho ventilu a stala se standardn\u00edm obvodem pro novorozeneckou a d\u011btskou anestezii.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Jak funguje ka\u017ed\u00fd typ Maplesonova obvodu?<\/strong><strong><\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Mapleson A (Magill\u016fv syst\u00e9m): Nejlep\u0161\u00ed pro spont\u00e1nn\u00ed d\u00fdch\u00e1n\u00ed u dosp\u011bl\u00fdch<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>Mapleson A je nej\u00fa\u010dinn\u011bj\u0161\u00ed obvod pro spont\u00e1nn\u011b d\u00fdchaj\u00edc\u00ed dosp\u011bl\u00e9 pacienty. Vy\u017eaduje pr\u016ftok \u010derstv\u00e9ho plynu pouze p\u0159ibli\u017en\u011b 1n\u00e1sobek minutov\u00e9 ventilace pacienta, aby se zabr\u00e1nilo v\u00fdznamn\u00e9mu zp\u011btn\u00e9mu vdechov\u00e1n\u00ed CO\u2082.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Jak je uspo\u0159\u00e1d\u00e1n Mapleson A?<\/strong><strong><\/strong><\/h4>\n\n\n\n<p>Vstup \u010derstv\u00e9ho plynu se nach\u00e1z\u00ed pobl\u00ed\u017e rezervo\u00e1rov\u00e9ho vaku na konci p\u0159\u00edstroje. APL ventil je um\u00edst\u011bn na konci pacienta. Oba jsou spojeny vlnitou hadic\u00ed.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Jak proud\u00ed plyn v Mapleson A?<\/strong><strong><\/strong><\/h4>\n\n\n\n<p>B\u011bhem n\u00e1dechu pacient nas\u00e1v\u00e1 \u010derstv\u00fd plyn z hadi\u010dky, zat\u00edmco APL ventil z\u016fst\u00e1v\u00e1 uzav\u0159en\u00fd. B\u011bhem v\u00fddechu vydechovan\u00fd plyn putuje zp\u011bt k rezervo\u00e1rov\u00e9mu vaku. Jak se vak pln\u00ed, tlak stoup\u00e1 a otev\u00edr\u00e1 APL ventil, \u010d\u00edm\u017e se vydechovan\u00fd plyn odv\u00e1d\u00ed do atmosf\u00e9ry. Kontinu\u00e1ln\u00ed p\u0159\u00edvod \u010derstv\u00e9ho plynu b\u011bhem v\u00fddechov\u00e9 pauzy vytla\u010duje zb\u00fdvaj\u00edc\u00ed vydechovan\u00fd plyn ventilem p\u0159ed dal\u0161\u00edm n\u00e1dechem.<\/p>\n\n\n\n<p>Plyn z mrtv\u00e9ho prostoru (z anatomick\u00e9ho mrtv\u00e9ho prostoru, kter\u00fd se ne\u00fa\u010dastnil v\u00fdm\u011bny plyn\u016f a neobsahuje p\u0159ebyte\u010dn\u00fd CO\u2082) je umo\u017en\u011bn n\u00e1vrat do okruhu. Toto je kl\u00ed\u010dov\u00fd d\u016fvod, pro\u010d Mapleson A dosahuje vysok\u00e9 \u00fa\u010dinnosti p\u0159i relativn\u011b n\u00edzk\u00fdch pr\u016ftoc\u00edch.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Jak\u00e9 jsou nev\u00fdhody Mapleson A?<\/strong><strong><\/strong><\/h4>\n\n\n\n<p>Ventil APL je um\u00edst\u011bn bl\u00edzko obli\u010deje pacienta, co\u017e zt\u011b\u017euje p\u0159\u00edstup b\u011bhem operac\u00ed hlavy a krku. Odpadn\u00ed plyn je odv\u00e1d\u011bn pobl\u00ed\u017e opera\u010dn\u00edho pole, co\u017e p\u0159isp\u00edv\u00e1 k zne\u010di\u0161t\u011bn\u00ed opera\u010dn\u00edho s\u00e1lu. Modifikace Lack \u0159e\u0161\u00ed oba probl\u00e9my p\u0159id\u00e1n\u00edm samostatn\u00e9ho v\u00fddechov\u00e9ho ramene, kter\u00e9 odv\u00e1d\u00ed odpadn\u00ed plyn zp\u011bt do konce p\u0159\u00edstroje k ods\u00e1v\u00e1n\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Mapleson B a C: Vysok\u00e1 spot\u0159eba \u010derstv\u00e9ho plynu<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>Mapleson B a C jsou nejm\u00e9n\u011b \u00fa\u010dinn\u00e9 okruhy v klasifikaci Mapleson. Vy\u017eaduj\u00ed pr\u016ftok \u010derstv\u00e9ho plynu rovnaj\u00edc\u00ed se nebo p\u0159ekra\u010duj\u00edc\u00ed vrcholov\u00fd inspira\u010dn\u00ed pr\u016ftok pacienta, aby se zabr\u00e1nilo zp\u011btn\u00e9mu vdechov\u00e1n\u00ed.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Jak\u00fd je rozd\u00edl mezi Maplesonem B a C?<\/strong><strong><\/strong><\/h4>\n\n\n\n<p>Ob\u011b varianty umis\u0165uj\u00ed vstup \u010derstv\u00e9ho plynu a APL ventil k pacientovi, s rezervo\u00e1rov\u00fdm vakem na konci p\u0159\u00edstroje. Jedin\u00fd struktur\u00e1ln\u00ed rozd\u00edl je, \u017ee Mapleson B obsahuje vlnitou hadici mezi p\u0159ipojen\u00edm k pacientovi a rezervo\u00e1rov\u00fdm vakem, zat\u00edmco Mapleson C ji vynech\u00e1v\u00e1 \u2013 \u010d\u00edm\u017e je C krat\u0161\u00ed, kompaktn\u011bj\u0161\u00ed varianta.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Pro\u010d jsou Mapleson B a C neefektivn\u00ed?<\/strong><strong><\/strong><\/h4>\n\n\n\n<p>V obou okruz\u00edch se vydechovan\u00fd plyn m\u00eds\u00ed s \u010derstv\u00fdm plynem v hadi\u010dk\u00e1ch a vaku. Kdy\u017e pacient n\u00e1sleduje n\u00e1dech, vdechovan\u00e1 sm\u011bs nevyhnuteln\u011b obsahuje \u010d\u00e1st d\u0159\u00edve vydechnut\u00e9ho plynu. Prevence klinicky v\u00fdznamn\u00e9ho zp\u011btn\u00e9ho vdechov\u00e1n\u00ed vy\u017eaduje extr\u00e9mn\u011b vysok\u00e9 rychlosti p\u0159\u00edvodu \u010derstv\u00e9ho plynu (FGF), co\u017e vede k vysok\u00e9 spot\u0159eb\u011b plynu a zna\u010dn\u00e9mu pl\u00fdtv\u00e1n\u00ed. Proto se Mapleson B a C v modern\u00ed praxi pro rutinn\u00ed klinick\u00e9 pou\u017eit\u00ed vol\u00ed z\u0159\u00eddka.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Mapleson D: Nejlep\u0161\u00ed pro \u0159\u00edzenou (mechanickou) ventilaci<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>Mapleson D je nejefektivn\u011bj\u0161\u00edm okruhem pro \u0159\u00edzen\u00e9 v\u011btr\u00e1n\u00ed dosp\u011bl\u00fdch pacient\u016f. Bainova modifikace Mapleson D je jedn\u00edm z nej\u010dast\u011bji pou\u017e\u00edvan\u00fdch polouzav\u0159en\u00fdch okruh\u016f v modern\u00ed anesteziologick\u00e9 praxi.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Jak je uspo\u0159\u00e1d\u00e1n Mapleson D?<\/strong><strong><\/strong><\/h4>\n\n\n\n<p>\u010cerstv\u00fd plyn vstupuje na konci u pacienta prost\u0159ednictv\u00edm p\u0159ipojen\u00ed T-kus. Ventil APL a rezervo\u00e1rov\u00fd vak jsou um\u00edst\u011bny na konci p\u0159\u00edstroje, p\u0159ipojen\u00e9 k pacientovi v\u00fddechovou v\u011btv\u00ed zvln\u011bn\u00e9 hadice.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Jak proud\u00ed plyn v modelu Mapleson D?<\/strong><strong><\/strong><\/h4>\n\n\n\n<p>Pacient vdechuje vzduch z FGF a proxim\u00e1ln\u00ed hadi\u010dky. P\u0159i v\u00fddechu proud\u00ed vydechovan\u00fd plyn do vlnit\u00e9 hadi\u010dky a sm\u011brem k rezervo\u00e1rov\u00e9mu vaku. Kontinu\u00e1ln\u00ed FGF postupn\u011b vytla\u010duje vydechovan\u00fd plyn d\u00e1le po hadi\u010dce. Jakmile tlak ve vaku dostate\u010dn\u011b stoupne, otev\u0159e se ventil APL a p\u0159ebyte\u010dn\u00fd plyn se vypust\u00ed. Mezi jednotliv\u00fdmi dechy FGF dopl\u0148uje proxim\u00e1ln\u00ed hadi\u010dku \u010derstv\u00fdm plynem a vytla\u010duje vydechovan\u00fd plyn pry\u010d od pacienta.<\/p>\n\n\n\n<p>Pr\u016ftok FGF 2\u20133n\u00e1sobek minutov\u00e9 ventilace pacienta je obecn\u011b dostate\u010dn\u00fd k zabr\u00e1n\u011bn\u00ed zp\u011btn\u00e9ho vdechov\u00e1n\u00ed b\u011bhem \u0159\u00edzen\u00e9 ventilace.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Jak\u00e1 je Bainova modifikace?<\/strong><strong><\/strong><\/h4>\n\n\n\n<p>Bain\u016fv okruh je koaxi\u00e1ln\u00ed variantou syst\u00e9mu Mapleson D. Trubice pro p\u0159\u00edvod \u010derstv\u00e9ho plynu vede uvnit\u0159 zvln\u011bn\u00e9 vn\u011bj\u0161\u00ed trubice (\u201ctrubice v trubici\u201d). Tato konstrukce nab\u00edz\u00ed t\u0159i v\u00fdhody: men\u0161\u00ed fyzick\u00fd objem, aerodynami\u010dt\u011bj\u0161\u00ed profil okruhu a \u010d\u00e1ste\u010dn\u00e9 oh\u0159\u00e1t\u00ed vdechovan\u00e9ho \u010derstv\u00e9ho plynu okoln\u00edm vydechovan\u00fdm plynem ve vn\u011bj\u0161\u00ed trubici \u2014 co\u017e sni\u017euje tepeln\u00e9 ztr\u00e1ty pacienta.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Mapleson E (Ayre\u016fv T-kus): Bezventilov\u00fd design pro novorozence<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>Mapleson E je d\u00fdchac\u00ed okruh bez ventil\u016f, odvozen\u00fd od Ayreho T-kus. Poskytuje t\u00e9m\u011b\u0159 nulov\u00fd odpor proud\u011bn\u00ed vzduchu, co\u017e jej \u010din\u00ed obzvl\u00e1\u0161t\u011b vhodn\u00fdm pro novorozence a mal\u00e9 kojence s omezenou dechovou n\u00e1mahou.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Jak funguje Mapleson E?<\/strong><strong><\/strong><\/h4>\n\n\n\n<p>\u010cerstv\u00fd plyn vstupuje na stran\u011b pacienta p\u0159es T-kus. V\u00fddechov\u00e1 v\u011btve je hadi\u010dka s otev\u0159en\u00fdm koncem, jej\u00ed\u017e vnit\u0159n\u00ed objem p\u0159evy\u0161uje dechov\u00fd objem pacienta. Neobsahuje \u017e\u00e1dn\u00fd ventil APL ani rezervo\u00e1rov\u00fd vak. Vydechovan\u00fd plyn jednodu\u0161e odch\u00e1z\u00ed otev\u0159en\u00fdm koncem hadi\u010dky.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Jak\u00e1 jsou rizika Mapleson E?<\/strong><strong><\/strong><\/h4>\n\n\n\n<p>Absence rezervo\u00e1rov\u00e9ho vaku znamen\u00e1, \u017ee b\u011bhem \u0159\u00edzen\u00e9 ventilace nedoch\u00e1z\u00ed k tlumen\u00ed tlaku. Pokud pr\u016ftok FGF (fresh gas flow) v\u00fdrazn\u011b p\u0159ekro\u010d\u00ed odtokovou kapacitu otev\u0159en\u00e9 hadi\u010dky, m\u016f\u017ee doj\u00edt k nadm\u011brn\u00e9mu tlaku v d\u00fdchac\u00edch cest\u00e1ch, co\u017e vede k plicn\u00ed barotraum\u011b. Klinick\u00e9mu person\u00e1lu tak\u00e9 chyb\u00ed hmatov\u00e1 a vizu\u00e1ln\u00ed zp\u011btn\u00e1 vazba, kterou rezervo\u00e1rov\u00fd vak poskytuje.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Mapleson F (Jackson-Reesova modifikace): Standardn\u00ed pediatrick\u00fd okruh<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>Mapleson F je nej\u010dast\u011bji pou\u017e\u00edvan\u00fd polootev\u0159en\u00fd d\u00fdchac\u00ed okruh pro pediatrickou a novorozeneckou anestezii. P\u0159id\u00e1v\u00e1 mal\u00fd (p\u0159ibli\u017en\u011b 500 ml) rezervo\u00e1rov\u00fd s\u00e1\u010dek s otev\u0159en\u00fdm koncem k v\u00fddechov\u00e9 v\u011btvi syst\u00e9mu Mapleson E.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Co p\u0159in\u00e1\u0161\u00ed ta\u0161ka typu \u201eReservoir\u201c?<\/strong><strong><\/strong><\/h4>\n\n\n\n<p>Ta\u0161ka poskytuje t\u0159i kl\u00ed\u010dov\u00e9 funkce:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Tlumic\u00ed \u00fa\u010dinek tlaku<\/strong>\u00a0\u2014 pru\u017enost vaku absorbuje tlakov\u00e9 \u0161pi\u010dky a chr\u00e1n\u00ed p\u0159ed barotraumatem b\u011bhem \u0159\u00edzen\u00e9 ventilace.<\/li>\n\n\n\n<li><strong>Monitorov\u00e1n\u00ed ventilace<\/strong>\u00a0\u2014 rytmick\u00e9 nafukov\u00e1n\u00ed a vyfukov\u00e1n\u00ed s\u00e1\u010dku b\u011bhem spont\u00e1nn\u00edho d\u00fdch\u00e1n\u00ed poskytuje l\u00e9ka\u0159i okam\u017eitou vizu\u00e1ln\u00ed zp\u011btnou vazbu o dechov\u00e9 frekvenci, dechov\u00e9m objemu a n\u00e1maze.<\/li>\n\n\n\n<li><strong>Manu\u00e1ln\u00ed ovl\u00e1d\u00e1n\u00ed ventilace<\/strong>\u00a0\u2014 l\u00e9ka\u0159 m\u016f\u017ee prstem uzav\u0159\u00edt otev\u0159en\u00fd konec vaku, aby nasm\u011broval proud plynu do plic pacienta a kontroloval tlak v d\u00fdchac\u00edch cest\u00e1ch.<\/li>\n<\/ol>\n\n\n\n<p>K vaku lze tak\u00e9 p\u0159ipojit ventil PEEP, \u010d\u00edm\u017e se syst\u00e9m bez ventilu p\u0159em\u011bn\u00ed na syst\u00e9m schopn\u00fd udr\u017eovat pozitivn\u00ed tlak na konci v\u00fddechu.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Jak\u00e1 je m\u00edra FGF pro Mapleson F?<\/strong><strong><\/strong><\/h4>\n\n\n\n<p>Mapleson F vy\u017eaduje vysok\u00e9 pr\u016ftoky \u010derstv\u00e9ho plynu \u2013 p\u0159ibli\u017en\u011b 2,5\u20133\u00d7 minutovou ventilaci pacienta \u2013 aby se zabr\u00e1nilo v\u00fdznamn\u00e9mu zp\u011btn\u00e9mu d\u00fdch\u00e1n\u00ed. Odvod odpadn\u00edho plynu je obt\u00ed\u017en\u00fd, proto\u017ee plyn unik\u00e1 otev\u0159en\u00fdm s\u00e1\u010dkem nam\u00edsto ur\u010den\u00e9ho ventilu pro odvod odpadn\u00edho plynu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Jak vybrat vhodn\u00fd Mapleson\u016fv obvod: Shrnut\u00ed klinick\u00fdch krit\u00e9ri\u00ed pro v\u00fdb\u011br<\/strong><strong><\/strong><\/h2>\n\n\n\n<p>Spr\u00e1vn\u00e9 nastaven\u00ed Maplesonova okruhu z\u00e1vis\u00ed na t\u0159ech hlavn\u00edch faktorech: re\u017eimu ventilace (spont\u00e1nn\u00ed vs. \u0159\u00edzen\u00e1), v\u011bku a velikosti pacienta a praktick\u00fdch hledisc\u00edch, jako je chirurgick\u00fd p\u0159\u00edstup a \u00faspora plynu.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Klinick\u00fd sc\u00e9n\u00e1\u0159<\/strong><\/td><td><strong>Doporu\u010den\u00fd obvod<\/strong><\/td><td><strong>Po\u017eadavek FGF<\/strong><\/td><\/tr><tr><td>Spont\u00e1nn\u00ed d\u00fdch\u00e1n\u00ed, dosp\u011bl\u00fd<\/td><td>Mapleson A (Magill)<\/td><td>\u2248 1\u00d7 MV<\/td><\/tr><tr><td>\u0158\u00edzen\u00e9 v\u011btr\u00e1n\u00ed, dosp\u011bl\u00fd<\/td><td>Mapleson D (nebo Bain)<\/td><td>2\u20133\u00d7 MV<\/td><\/tr><tr><td>Novorozeneck\u00e9 \/ pediatrick\u00e9<\/td><td>Mapleson F (Jackson-Rees)<\/td><td>2.5\u20133\u00d7 MV<\/td><\/tr><tr><td>Neonatal, minimal resistance<\/td><td>Mapleson E (Ayre T-piece)<\/td><td>2.5\u20133\u00d7 MV<\/td><\/tr><tr><td>Short procedures, field use<\/td><td>Mapleson A or D<\/td><td>Varies<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><em>MV = Minute Ventilation<\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>When Should You Use a Circle System Instead?<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>Circle systems are preferred over Mapleson circuits for long-duration surgical procedures (typically &gt;1 hour), when low-flow or minimal-flow anesthesia is desired for cost and environmental reasons, or when precise control of inspired anesthetic concentration is required. Mapleson circuits remain the better choice for short cases, pediatric anesthesia, transport\/field settings, and situations where simplicity and low airway resistance are priorities.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Key Technical Specifications at a Glance<\/strong><strong><\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Type<\/strong><\/td><td><strong>APL Valve<\/strong><\/td><td><strong>FGF Inlet<\/strong><\/td><td><strong>Reservoir Bag<\/strong><\/td><td><strong>Best For<\/strong><\/td><\/tr><tr><td><strong>A (Magill)<\/strong><\/td><td>Patient end<\/td><td>Machine end<\/td><td>Machine end<\/td><td>Spontaneous ventilation, adults<\/td><\/tr><tr><td><strong>B<\/strong><\/td><td>Patient end<\/td><td>Patient end<\/td><td>Machine end<\/td><td>Rarely used clinically<\/td><\/tr><tr><td><strong>C<\/strong><\/td><td>Patient end<\/td><td>Patient end<\/td><td>Machine end<\/td><td>Rarely used clinically<\/td><\/tr><tr><td><strong>D<\/strong><\/td><td>Machine end<\/td><td>Patient end<\/td><td>Machine end<\/td><td>Controlled ventilation, adults<\/td><\/tr><tr><td><strong>E (Ayre)<\/strong><\/td><td>None<\/td><td>Patient end<\/td><td>None<\/td><td>Neonates (spontaneous)<\/td><\/tr><tr><td><strong>F (J-Rees)<\/strong><\/td><td>None (bag)<\/td><td>Patient end<\/td><td>Expiratory end<\/td><td>Neonates &amp; pediatrics<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u010casto kladen\u00e9 ot\u00e1zky<\/strong><strong><\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Kter\u00fd Mapleson\u016fv okruh je nejlep\u0161\u00ed pro spont\u00e1nn\u00ed d\u00fdch\u00e1n\u00ed?<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>Mapleson A (the Magill system) is the most efficient circuit for spontaneous ventilation in adults. It minimizes CO\u2082 rebreathing at a fresh gas flow approximately equal to the patient\u2019s minute ventilation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Kter\u00fd Mapleson\u016fv okruh je nejlep\u0161\u00ed pro \u0159\u00edzen\u00e9 v\u011btr\u00e1n\u00ed?<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>Mapleson D, zvl\u00e1\u0161t\u011b koaxi\u00e1ln\u00ed modifikace Bain, je nejefektivn\u011bj\u0161\u00ed obvod pro \u0159\u00edzen\u00e9 (mechanick\u00e9) v\u011btr\u00e1n\u00ed. Vy\u017eaduje pr\u016ftok \u010derstv\u00e9ho plynu 2\u20133n\u00e1sobek minutov\u00e9 ventilace.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Jak\u00fd je rozd\u00edl mezi Mapleson E a Mapleson F?<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>Both are based on the Ayre T-piece. Mapleson E has no valve and no reservoir bag \u2014 it is a simple open-ended tube. Mapleson F adds a 500 mL open-tailed reservoir bag to the expiratory limb, providing pressure buffering, visual respiratory monitoring, and the option for manual ventilation control.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Why are Mapleson B and C rarely used?<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>Mapleson B and C require fresh gas flow rates equal to or exceeding peak inspiratory flow to prevent rebreathing. This makes them highly gas-consumptive and impractical compared to Mapleson A (for spontaneous breathing) or Mapleson D (for controlled ventilation).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>What is the Bain circuit?<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>The Bain circuit is a coaxial modification of Mapleson D. The fresh gas tube runs inside the corrugated expiratory tubing, reducing bulk and allowing the exhaled gas in the outer tube to warm the incoming fresh gas \u2014 an advantage for reducing patient heat loss.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Do Mapleson circuits use CO\u2082 absorbers?<\/strong><strong><\/strong><\/h3>\n\n\n\n<p>No. Mapleson circuits rely entirely on fresh gas flow to flush out expired CO\u2082. They do not contain soda lime or any chemical absorbent. This is the fundamental difference between Mapleson (semi-closed) circuits and circle (closed or semi-closed with absorber) systems.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>About This Guide<\/strong><strong><\/strong><\/h2>\n\n\n\n<p>This technical reference is published by <strong>WeishanTech<\/strong>&nbsp;(weishantech.com) as part of our anesthesia equipment knowledge base. WeishanTech provides professional-grade anesthesia breathing circuits, components, and accessories for hospitals, clinics, and distributors worldwide. For product inquiries or technical consultation, visit weishantech.com or contact our sales team directly.<\/p>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1778818517454\"><strong class=\"schema-faq-question\">Kter\u00fd Mapleson\u016fv okruh je nejlep\u0161\u00ed pro spont\u00e1nn\u00ed d\u00fdch\u00e1n\u00ed?<\/strong> <p class=\"schema-faq-answer\">Mapleson A (the Magill system) is the most efficient circuit for spontaneous ventilation in adults. It minimizes CO\u2082 rebreathing at a fresh gas flow approximately equal to the patient&#8217;s minute ventilation.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778818558878\"><strong class=\"schema-faq-question\">Kter\u00fd Mapleson\u016fv okruh je nejlep\u0161\u00ed pro \u0159\u00edzen\u00e9 v\u011btr\u00e1n\u00ed?<\/strong> <p class=\"schema-faq-answer\">Mapleson D, zvl\u00e1\u0161t\u011b koaxi\u00e1ln\u00ed modifikace Bain, je nejefektivn\u011bj\u0161\u00ed obvod pro \u0159\u00edzen\u00e9 (mechanick\u00e9) v\u011btr\u00e1n\u00ed. Vy\u017eaduje pr\u016ftok \u010derstv\u00e9ho plynu 2\u20133n\u00e1sobek minutov\u00e9 ventilace.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778818580937\"><strong class=\"schema-faq-question\">Jak\u00fd je rozd\u00edl mezi Mapleson E a Mapleson F?<\/strong> <p class=\"schema-faq-answer\">Ob\u011b jsou zalo\u017eeny na T-kus Ayre. Mapleson E nem\u00e1 \u017e\u00e1dn\u00fd ventil ani rezervo\u00e1rov\u00fd vak. Mapleson F p\u0159id\u00e1v\u00e1 do v\u00fddechov\u00e9 v\u011btve otev\u0159en\u00fd rezervo\u00e1rov\u00fd vak o objemu 500 ml, kter\u00fd poskytuje tlumen\u00ed tlaku, vizu\u00e1ln\u00ed monitorov\u00e1n\u00ed d\u00fdch\u00e1n\u00ed a kontrolu manu\u00e1ln\u00edho d\u00fdch\u00e1n\u00ed.<\/p> <\/div> <\/div>\n\n\n\n<p><em>Last updated: May 2026. This article is for educational purposes only and does not constitute medical advice. Always follow institutional protocols and manufacturer guidelines when selecting anesthesia breathing circuits.<\/em><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Mapleson Breathing Circuits Explained: Types A\u2013F, Working Principles, and Clinical Selection Guide Mapleson breathing circuits are semi-closed anesthesia delivery systems classified into six types (A, B, C, D, E, and F) based on the arrangement of fresh gas inlet, APL valve, reservoir bag, and breathing tubing. They are widely used in general anesthesia to deliver [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5022,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[96],"tags":[],"class_list":["post-5020","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge"],"blocksy_meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mapleson Breathing Circuits A\u2013F: Types<\/title>\n<meta name=\"description\" content=\"Complete guide to Mapleson breathing circuits A through F. 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